ID   RPIA_PYRAB              Reviewed;         229 AA.
AC   Q9V0L6; G8ZGX4;
DT   20-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   03-AUG-2022, entry version 116.
DE   RecName: Full=Ribose-5-phosphate isomerase A {ECO:0000255|HAMAP-Rule:MF_00170};
DE            EC=5.3.1.6 {ECO:0000255|HAMAP-Rule:MF_00170};
DE   AltName: Full=Phosphoriboisomerase A {ECO:0000255|HAMAP-Rule:MF_00170};
DE            Short=PRI {ECO:0000255|HAMAP-Rule:MF_00170};
GN   Name=rpiA {ECO:0000255|HAMAP-Rule:MF_00170}; Synonyms=rpi;
GN   OrderedLocusNames=PYRAB07730; ORFNames=PAB0522;
OS   Pyrococcus abyssi (strain GE5 / Orsay).
OC   Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae;
OC   Pyrococcus.
OX   NCBI_TaxID=272844;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=GE5 / Orsay;
RX   PubMed=12622808; DOI=10.1046/j.1365-2958.2003.03381.x;
RA   Cohen G.N., Barbe V., Flament D., Galperin M., Heilig R., Lecompte O.,
RA   Poch O., Prieur D., Querellou J., Ripp R., Thierry J.-C., Van der Oost J.,
RA   Weissenbach J., Zivanovic Y., Forterre P.;
RT   "An integrated analysis of the genome of the hyperthermophilic archaeon
RT   Pyrococcus abyssi.";
RL   Mol. Microbiol. 47:1495-1512(2003).
RN   [2]
RP   GENOME REANNOTATION.
RC   STRAIN=GE5 / Orsay;
RX   PubMed=22057919; DOI=10.1007/s00284-011-0035-x;
RA   Gao J., Wang J.;
RT   "Re-annotation of two hyperthermophilic archaea Pyrococcus abyssi GE5 and
RT   Pyrococcus furiosus DSM 3638.";
RL   Curr. Microbiol. 64:118-129(2012).
CC   -!- FUNCTION: Catalyzes the reversible conversion of ribose-5-phosphate to
CC       ribulose 5-phosphate. {ECO:0000255|HAMAP-Rule:MF_00170}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=aldehydo-D-ribose 5-phosphate = D-ribulose 5-phosphate;
CC         Xref=Rhea:RHEA:14657, ChEBI:CHEBI:58121, ChEBI:CHEBI:58273;
CC         EC=5.3.1.6; Evidence={ECO:0000255|HAMAP-Rule:MF_00170};
CC   -!- PATHWAY: Carbohydrate degradation; pentose phosphate pathway; D-ribose
CC       5-phosphate from D-ribulose 5-phosphate (non-oxidative stage): step
CC       1/1. {ECO:0000255|HAMAP-Rule:MF_00170}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00170}.
CC   -!- SIMILARITY: Belongs to the ribose 5-phosphate isomerase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00170}.
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DR   EMBL; AJ248285; CAB49687.1; -; Genomic_DNA.
DR   EMBL; HE613800; CCE70169.1; -; Genomic_DNA.
DR   PIR; F75121; F75121.
DR   RefSeq; WP_010867895.1; NC_000868.1.
DR   AlphaFoldDB; Q9V0L6; -.
DR   SMR; Q9V0L6; -.
DR   STRING; 272844.PAB0522; -.
DR   EnsemblBacteria; CAB49687; CAB49687; PAB0522.
DR   GeneID; 1496113; -.
DR   KEGG; pab:PAB0522; -.
DR   PATRIC; fig|272844.11.peg.813; -.
DR   eggNOG; arCOG01122; Archaea.
DR   HOGENOM; CLU_056590_1_1_2; -.
DR   OMA; YDWDEVN; -.
DR   OrthoDB; 98657at2157; -.
DR   PhylomeDB; Q9V0L6; -.
DR   UniPathway; UPA00115; UER00412.
DR   Proteomes; UP000000810; Chromosome.
DR   Proteomes; UP000009139; Chromosome.
DR   GO; GO:0004751; F:ribose-5-phosphate isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009052; P:pentose-phosphate shunt, non-oxidative branch; IEA:UniProtKB-UniRule.
DR   CDD; cd01398; RPI_A; 1.
DR   HAMAP; MF_00170; Rib_5P_isom_A; 1.
DR   InterPro; IPR037171; NagB/RpiA_transferase-like.
DR   InterPro; IPR020672; Ribose5P_isomerase_typA_subgr.
DR   InterPro; IPR004788; Ribose5P_isomerase_type_A.
DR   PANTHER; PTHR11934; PTHR11934; 1.
DR   Pfam; PF06026; Rib_5-P_isom_A; 1.
DR   SUPFAM; SSF100950; SSF100950; 1.
DR   TIGRFAMs; TIGR00021; rpiA; 1.
PE   3: Inferred from homology;
KW   Isomerase.
FT   CHAIN           1..229
FT                   /note="Ribose-5-phosphate isomerase A"
FT                   /id="PRO_0000158515"
FT   ACT_SITE        107
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         28..31
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         85..88
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         98..101
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
FT   BINDING         125
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00170"
SQ   SEQUENCE   229 AA;  24986 MW;  43DC479270F68F04 CRC64;
     MNIEEMKKIA AKEALKFIED DMVIGLGTGS TTAYFIRLLG DMIKKGEVSD IVGVPTSYQS
     RLLAIESGIP VATLDQVDAI DVAVDGADEV DPNLNLIKGR GAALTMEKII ESRAGMFIVL
     VDERKLVDYL CQKMPVPIEV IPQAWRAIVE ELSIFNAEAK LRMGVNKDGP VITDNGNFII
     DAKFPRIDDP LDMEIELNTI PGVVENGIFA DIADIVIVGT KEGVKTLER